Stop Custom Display Units Image Flashing?

I'm using only the FaceBook URL in the Custom Display Units but every few seconds the logo disappears (roates) for a few seconds and then reappears.

How do you stop that and just show the Facebook image show all the time?

UPDATE:

I had some commented out html code in the Custom Products box and deleted the code and the Social images stopped rotating for every page except the Home page. I just have a Facebook URL defined but on the Home page the Facebook image displays for a few seconds then disappears (showing a white space). How do you fix this?